2 * Platform dependent support for Intel SoftSDV simulator.
4 * Copyright (C) 1999 Intel Corp.
5 * Copyright (C) 1999 Hewlett-Packard Co
6 * Copyright (C) 1999 David Mosberger-Tang <davidm@hpl.hp.com>
7 * Copyright (C) 1999 VA Linux Systems
8 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
9 * Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
11 #include <linux/config.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/kernel.h>
16 #include <linux/kdev_t.h>
17 #include <linux/string.h>
18 #include <linux/tty.h>
19 #include <linux/console.h>
20 #include <linux/timex.h>
21 #include <linux/sched.h>
24 #include <asm/machvec.h>
25 #include <asm/system.h>
28 * This is here so we can use the CMOS detection in ide-probe.c to
29 * determine what drives are present. In theory, we don't need this
30 * as the auto-detection could be done via ide-probe.c:do_probe() but
31 * in practice that would be much slower, which is painful when
32 * running in the simulator. Note that passing zeroes in DRIVE_INFO
33 * is sufficient (the IDE driver will autodetect the drive geometry).
35 char drive_info[4*16];
37 unsigned char aux_device_present = 0xaa; /* XXX remove this when legacy I/O is gone */
40 dig_setup (char **cmdline_p)
42 unsigned int orig_x, orig_y, num_cols, num_rows, font_height;
45 * Default to /dev/sda2. This assumes that the EFI partition
46 * is physical disk 1 partition 1 and the Linux root disk is
47 * physical disk 1 partition 2.
49 ROOT_DEV = to_kdev_t(0x0802); /* default to second partition on first drive */
51 #ifdef CONFIG_IA64_SOFTSDV_HACKS
52 ROOT_DEV = to_kdev_t(0x0302); /* 2nd partion on 1st IDE */
53 #endif /* CONFIG_IA64_SOFTSDV_HACKS */
59 memset(&screen_info, 0, sizeof(screen_info));
61 if (!ia64_boot_param.console_info.num_rows
62 || !ia64_boot_param.console_info.num_cols)
64 printk("dig_setup: warning: invalid screen-info, guessing 80x25\n");
71 orig_x = ia64_boot_param.console_info.orig_x;
72 orig_y = ia64_boot_param.console_info.orig_y;
73 num_cols = ia64_boot_param.console_info.num_cols;
74 num_rows = ia64_boot_param.console_info.num_rows;
75 font_height = 400 / num_rows;
78 screen_info.orig_x = orig_x;
79 screen_info.orig_y = orig_y;
80 screen_info.orig_video_cols = num_cols;
81 screen_info.orig_video_lines = num_rows;
82 screen_info.orig_video_points = font_height;
83 screen_info.orig_video_mode = 3; /* XXX fake */
84 screen_info.orig_video_isVGA = 1; /* XXX fake */
85 screen_info.orig_video_ega_bx = 3; /* XXX fake */
92 * Disable the compatibility mode interrupts (8259 style), needs IN/OUT support